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What is actual return (observed payout)?
Definition and example from our casino glossary.
Definition
Actual return is the payout percentage observed over a specific period or sample, which can differ sharply from a game's theoretical RTP.
The RTP in a game's rules is theoretical: it comes from the maths model. Actual return is what was really paid out over a given set of bets, for example your last 500 spins or a casino's monthly data for one title. Over small samples, actual return can sit far above or below RTP; a single session on a high-volatility slot might show 20% or 300%. As the number of plays grows, actual return tends to approach the theoretical value, which is how regulators and test houses monitor games in live operation. Some casinos and auditors publish monthly payout reports showing actual return across games. These figures help confirm that games behave as designed, but they cannot predict the next session. Comparing your own history with RTP is useful mainly for one thing: recognising that short-term results are noise, not evidence of a hot or cold game.